Proper wire management is essential to avoiding ground
faults, especially at the array where conductors are installed
in free air and more easily damaged. Specific PV mounting
structures may require different wiring techniques to ensure
that PV source-circuit conductors are secured in a safe and
serviceable manner. Regardless of location, the general theory
is the same: All current-carrying conductors need to be
protected from possible sources of damage during installation
and over time.